MARINCO MARINCO EEL STRAIGHT ADAPTOR 15A MALE / 30A FEMALE S15-30

One Piece Adapter with a 30A 125V Locking Connector and a 15A 125V Straight Blade Plug
Straight Adapters are high-quality, one-piece adapters similar in usage to Pigtail Adapters. However, they do not have sealing collars and are not recommended for use in wet locations. Use only in an enclosed, dry location, such as powering your boat from a 15A power receptacle inside your house.